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为缓解21世纪能源枯竭的问题,核聚变已经成为了当代物理学研究的重要课题。核聚变较核裂变具有储能更丰富和反应更安全等优点。实现核聚变的方法主要包括惯性约束核聚变和磁约束核聚变,而利用磁镜装置约束等离子体是实现磁约束核聚变的重要途径。因此研究磁镜的磁场位形以及磁镜的工作原理显得格外重要。本文基于能够产生磁镜磁场位形的对称导电线圈,利用毕奥—萨法尔定律,推导出了中轴上磁场的解析解,并且MATLAB软件数值解析了空间任意点的磁场分布,最终图形展示了磁镜磁场的位形分布。
In order to alleviate the problem of energy depletion in the 21st century, nuclear fusion has become an important issue in the study of contemporary physics. Nuclear fusion has the advantages of more energy storage and more reaction than nuclear fission. The methods of nuclear fusion include inertial confinement fusion and magnetic confinement fusion, and the use of magnetic confinement plasma confinement is an important way to achieve magnetic confinement fusion. Therefore, it is very important to study the magnetic field shape of the magnetic mirror and the working principle of the magnetic mirror. In this paper, we derive the analytic solution of the magnetic field on the central axis by using Biot-Safar’s law based on the symmetric conductive coil that can generate the magnetic field magnetic position and the numerical analysis of the magnetic field distribution at any point in the space by MATLAB software. Magnetic mirror magnetic field distribution of the shape.